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i dont know asked some one else to asked
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Why liquid paraffin used for determination of melting point?
Liquid paraffin is used in the determination of melting point because it has a known and consistent melting point of around 40-60°C. This allows for a reliable reference point to calibrate and set the temperature of the melting point apparatus before testing other substances. Liquid paraffin also has a low volatility, ensuring that it remains stable throughout the duration of the experiment.
How can melting point and boiling point determination be used in identifying and or characterizing unknown compounds?
Melting point and boiling point determination can help in identifying unknown compounds by comparing the experimental values with known values in databases. A match can indicate the compound's identity. Additionally, the range of melting point and boiling point can provide information on the purity and molecular structure of the compound.
When are the terms melting point and freezing point used?
The term "melting point" is used to describe the temperature at which a substance changes from a solid to a liquid. The term "freezing point" is used to describe the temperature at which a substance changes from a liquid to a solid.
What is difference between melting point and drop melting point?
The melting point is the temperature at which a solid substance transitions to a liquid state. The drop melting point is a method of determining the melting point where a small amount of the substance is heated until it melts and then allowed to drop onto a solid surface to observe the melting point. Drop melting point is often used when the substance being tested has a high melting point or when observing the melting process is critical.
What is the function of melting point apparatus?
Fisher-Johns apparatus is mainly used to measure the boiling point
Why liquid paraffin used for determination of melting point?
Liquid paraffin is used in the determination of melting point because it has a known and consistent melting point of around 40-60°C. This allows for a reliable reference point to calibrate and set the temperature of the melting point apparatus before testing other substances. Liquid paraffin also has a low volatility, ensuring that it remains stable throughout the duration of the experiment.
Why we use paraffin for determination of melting point?
Paraffin is a commonly used material for determining the melting point of organic compounds because it has a well-defined melting point of 54-57°C and does not react with most organic compounds. This makes it a suitable medium for accurately measuring the melting points of various substances without interference.
What is the flammable solid used to make candles?
Paraffin wax is a common flammable solid used to make candles. It is derived from petroleum and has a low melting point, making it ideal for candle-making.
Which property of paraffin is used to separate them from crude oil?
The property of paraffin's high melting point is used to separate them from crude oil in a process called fractional distillation. Paraffin's high boiling point causes it to condense and separate from the other components of crude oil at different temperatures in the distillation column.
Why paraffin oil used in instrument while knowing melting point of benzoic acid?
Paraffin oil is used in instruments as a lubricant due to its low viscosity and ability to reduce friction between moving parts. Although benzoic acid has a higher melting point compared to paraffin oil, it is not commonly used as a lubricant in instruments due to its acidic nature and potential reactivity with other materials.
Why do you use liquid paraffin to detect melting point and boiling point in a lab?
Because the phase changes (solid and liquid, and even vaporization) are within safe temperature limits and the heat of fusion (enthalpy) is low compared to water -- i.e. it becomes solid again faster than freezing water. Unless you have some dry ice handy.
Why is the melting point determination not used to find the melting point of inorganic compounds?
Melting point determination is not commonly used for inorganic compounds because many inorganic compounds have high melting points that are difficult to determine accurately using conventional methods, which can involve significant heating requirements and specialized equipment. Inorganic compounds can also have complex melting behavior, such as decomposition or phase transitions, that make determination of a precise melting point challenging. Analytical techniques like differential scanning calorimetry or thermogravimetric analysis are often more suitable for studying the thermal properties of inorganic compounds.
How can melting point and boiling point determination be used in identifying and or characterizing unknown compounds?
Melting point and boiling point determination can help in identifying unknown compounds by comparing the experimental values with known values in databases. A match can indicate the compound's identity. Additionally, the range of melting point and boiling point can provide information on the purity and molecular structure of the compound.
When are oil baths and water baths used respectively for melting point determination?
Oil baths are typically used for high-temperature melting point determinations, where the sample needs to be heated to a temperature above the boiling point of water. Water baths, on the other hand, are used for lower temperature melting point determinations, as water has a lower boiling point compared to oil.
What is the melting point of wax?
i think its 100 --------- The range of the melting point is between 30 0C and 70 0C, depending on the material used. At a higher temperature the wax is thermally decomposed or ignited.
What is heat temperature of melting candle?
The melting point of candle wax varies depending on the type of wax used. Generally, paraffin wax (commonly used in candles) melts at around 120-150 degrees Fahrenheit (49-66 degrees Celsius). Soy wax, another common type, has a lower melting point of around 110-130 degrees Fahrenheit (43-54 degrees Celsius).
What are the applications of finding the melting point of an organic compound?
Finding the melting point of an organic compound can help with compound identification, purity assessment, and determination of its physical properties. It is commonly used in organic chemistry labs to confirm the identity of a compound and assess its quality for use in experiments or industrial applications.
